A new study from UCSB finds significant increases in businesses hiring organized shills to push products online. These 'malicious crowd-sourcing systems' enlist dozens or hundreds of professional shills to orchestrate mass account creation, generate bogus ratings, and post canned cut-and-paste positive reviews -- with each 'task' costing between 13 and 70 cents. 'Unscrupulous crowd-sourcing sites, coupled with international payment systems, have enabled a burgeoning crowdturfing market that targets U.S. websites, but is fueled by a global workforce.'